WILL MARK BRAINLIEST! What is the radius of a circle with a diameter of 21 meters?

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c

Which region represents the solution to the given system of inequalities? |-0.5x+y23 | 1.5x+ys-1 5 4 -3 -2 -1 1 2 3 4

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?